package thread;

public class SyncDemo {
    public static void main(String[] args) {
        Table table=new Table();
        Thread thread=new Thread("甲"){
            public void run(){//
                while (true){
                    int bean= table.getBeans();
                    Thread.yield();
                    System.out.println(getName()+bean);
                }
            }
        };
        Thread thread1=new Thread("已"){
            public void run(){
                while(true){
                    int bean= table.getBeans();
                    Thread.yield();
                    System.out.println(getName()+bean);
                }
            }
        };
        thread.start();
        thread1.start();

    }
}
class Table{
    private  int beans=20;
    public synchronized int getBeans(){
        if (beans==0){
            throw new RuntimeException("没有豆子了");
        }
        Thread.yield();
        return beans--;
    }
}
